Rocco is very proud on the day in question as his first 'silver hair' has appeared on his back. Being a Silver Back Gorilla it is a momentous occasion for him. Meanwhile Reg has become sucked into a whirlpool that has appeared on another end of the island. Reg is fascinated by his discovery of a giant clam containing a huge pearl at the bottom of this watery apparition. The rest of the animals attempt to save him but all inevitably fall in as well. With a little assistance from Noah and Salomi, the stranded animals are rescued. However, Mammothsbody, on the escape from the whirlpool's depths, strangely pulls out and eats Rocco's silver hair.